Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual é a conferência quando Ferris State é o oponente do jogo do campeonato?
 ###Tabelas: CREATE TABLE by_clubs (by_clubs_id AUTO_INCREMENT PRIMARY KEY, Team VARCHAR, Matches INT, Wins INT, Wins % VARCHAR, Draws INT, Draws % VARCHAR, Losses INT, Losses % VARCHAR, Against INT, For & Against Ratio VARCHAR) CREATE TABLE european_matches (european_matches_id AUTO_INCREMENT PRIMARY KEY, Competition VARCHAR, Played INT, Draw INT, Lost INT, Favour INT, Against INT) CREATE TABLE reconstruction_in_the_british_museum (reconstruction_in_the_british_museum_id AUTO_INCREMENT PRIMARY KEY, Image INT, Smith VARCHAR, Ashmolean INT, Foster INT, Hahland INT, Dinsmoor VARCHAR, Hofkes-Brukker VARCHAR, Harrison VARCHAR, Cooper VARCHAR, BM/Corbett VARCHAR) CREATE TABLE conference_tournament_championships (conference_tournament_championships_id AUTO_INCREMENT PRIMARY KEY, Tournament INT, Conference VARCHAR, Championship Game Opponent VARCHAR, Score VARCHAR, Location VARCHAR, Head Coach VARCHAR) CREATE TABLE satellites (satellites_id AUTO_INCREMENT PRIMARY KEY, Name VARCHAR, COSPAR ID SATCAT № VARCHAR, Launch date (UTC) VARCHAR, Launch vehicle VARCHAR, Launch site VARCHAR, Launch designation VARCHAR, Longitude VARCHAR)  
SELECT Conference FROM conference_tournament_championships WHERE Championship Game Opponent = Ferris State